Function isDestroyed

lib/internal/streams/utils.js:120–126

(stream)

}

function isDestroyed(stream) {
  if (!isNodeStream(stream)) return null;
  const wState = stream._writableState;
  const rState = stream._readableState;
  const state = wState || rState;
  return !!(stream.destroyed || stream[kIsDestroyed] || state?.destroyed);
}

// Have been end():d.
function isWritableEnded(stream) {